Some economists don't get paid to know about the economy, but to justify the trickle-up of wealth.

Economists are "not rewarded for studying the economy," says Baker, as evidenced by the fact that almost everyone in the profession failed to predict the $8 trillion housing bubble that brought the economy to its knees [REUTERS]

There is no serious dispute that the United States has seen a massive increase in inequality over the last three decades. However there is a major dispute over the causes of this rise in inequality.

The explanation most popular in elite and policy circles is that the rise in inequality was simply the natural working of the economy. Their story is that the explosion of information technology and globalization have increased demand for highly-skilled workers while sharply reducing the demand for less-educated workers.

While the first part of this story is at best questionable, the second part should invite ridicule and derision. It doesn't pass the laugh test.

As far as the technology story, yes information technologies have displaced large amounts of less-skilled labour. So did the technologies that preceded them. There are hundreds of books and articles from the 1950s and 1960s that expressed grave concerns that automation would leave much of the workforce unemployed. Is there evidence that the displacement is taking place more rapidly today than in that era? If so, it is not showing up on our productivity data.

More germane to the issue at hand, unlike the earlier wave of technology, computerization offers the potential for displacing vast amounts of highly skilled labour. Legal research that might have previously required a highly skilled lawyer can now be done by an intelligent college grad and a good search engine. Medical diagnosis and the interpretation of test results that may have previously required a physician, and quite possibly a highly paid specialist, can now be done by technical specialists who may not even have a college education.

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If the technology explanation for inequality is weak, the globalization part of the story is positively pernicious. The basic story is that globalization has integrated a huge labour force of billions of workers in developing countries into the world economy. These workers are able to fill many of the jobs that used to provide middle class living standards to workers in the United States and will accept a fraction of the wage. This makes many formerly middle class jobs uncompetitive in the world economy given current wages and currency values. There is no reason to believe that current technologies are replacing comparatively more less-educated workers than highly educated workers. The fact that lawyers and doctors largely control how their professions are practiced almost certainly has much more to do with the demand for their services.

This part of the story is true. The part that our elite leave out is that there are tens of millions of bright and highly educated workers in the developing world who could fill most of the top paying jobs in the US economy: Doctors, lawyers, accountants, etc. These workers are also willing to work for a small fraction of the wages of their US counterparts since they come from poor countries with much lower standards of living.

The reason why the manufacturing workers, construction workers, and restaurant workers lose their jobs to low-paid workers from the developing world, and doctors and lawyers don't, is that doctors and lawyers use their political power to limit the extent to which they are exposed to competition from their low-paid counterparts in the developing world. Our trade policy has been explicitly designed to remove barriers that prevent General Electric and other companies from moving their manufacturing operations to Mexico, China or other developing countries. By contrast, many of the barriers that make it difficult for foreign professionals to work in the United States have actually been strengthened in the last two decades.

If economics was an honest profession, economists would focus their efforts on documenting the waste associated with protectionist barriers for professionals. They devoted endless research studies to estimating the cost to consumers of tariffs on products like shoes and tires. It speaks to the incredible corruption of the economics profession that there are not hundreds of studies showing the loss to consumers from the barriers to trade in physicians' services. If trade could bring down the wages of physicians in the United States just to European levels, it would save consumers close to $100 billion a year.

But economists are not rewarded for studying the economy. That is why almost everyone in the profession missed the $8 trillion housing bubble, the collapse of which stands to cost the country more than $7 trillion in lost output according to the Congressional Budget Office (that comes to around $60,000 per household).

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Few if any economists lost their 6-figure paychecks for this disastrous mistake. But most economists are not paid for knowing about the economy. They are paid for telling stories that justify giving more money to rich people. Hence we can look forward to many more people telling us that all the money going to the rich was just the natural workings of the economy. When it comes to all the government rules and regulations that shifted income upward, they just don't know what you're talking about.

Dr. Dean Baker is a macroeconomist and Co-Director of the Center for Economic and Policy Research in Washington, D.C. He previously worked as a senior economist at the Economic Policy Institute and an assistant professor at Bucknell University. (more...)